Patent GB-205451-A (GB)
Abstract: 205,451. Haddan, A. J. H., (National Cash Register Co.). June 9, 1922. Hammer-impression arrangements; paper feeding and guiding arrangements; line-spacing mechanism.-In a cash register, one or more impressions are printed at will upon inserted record material such as a pass-book and deposit slip or ledger card which are supported on an adjustable carriage, and to this end improvements are introduced into the impression mechanism, the line-positioning device for the adjustable carriage and the feeding-device for ejecting the record material. The platen 595 is carried in a frame formed by side members 598 and a cross-member 599 pivoted on the shaft 493 by hubs 1599. A lever 607 loose on the shaft 493 is connected to the platen by toggle links 603, 605. The forked end of the lever 607 is provided with rollers 610 which engage a double cam-plate 611 secured to one end of a sleeve 612 loose on the shaft 379. The other end of the sleeve 612 carries a Geneva plate 600 with the notches in which gear two pins 613, 614 carried by a disc 615 secured to a sleeve 616 splined to the shaft 242. The sleeve 616 may be slid along the shaft 242 so that the pin 613 may lie out of the plane of the Geneva, plate 600, the pin 614 being long enough always to lie in this plane. When the shaft 242 rotates, the lever 607, and consequently the platen, is thus given one or two upward movements. The character of the impression may be varied by a cam 617 pivoted at 618 to the lever 607 and bearing against the lower toggle link which is drawn against the cam by a spring 622. The cam may be adjusted by a set-screw 620 co-operating with a slot 621 in the lever 607. The adjustment is such that the toggle mechanism will be collapsed if the printing medium is thicker than that for which the adjustment is made. When no printing medium is present the toggles are also collapsed by mechanism similar to that described in Specification 169,750. To position the sleeve 615, a sleeve 440 is pulled out against spring influence and turned to slide the shaft 445 through mechanism including a segment gear 444 and a casting 448 loose on the shaft and moving another casting 453 pinned to the shaft through a pin and camgroove. An arm 455 integral with a sleeve 454 free to rotate, but held against sliding on the shaft is forked to engage a groove in the sleeve 616. The sleeve 440 is locked by a spring pin in either of its two positions. Normally, the sleeve is set so that two impressions are given and means are provided so that without shifting the sleeve 440 one impression only may be effected. The printer rack associated with the balance-key positions a cam according to its differential setting, and thus through a lever mechanism rocks a segment 462 fast on the inner end of the shaft 445. The arrangement is such that when the " release " key of this bank is operated the shaft 445 is slid so that the pin 613 is out of the path of the Geneva plate and only one impression takes place. In addition to the fixed table 592, an adjustable table 675 with its upper surface in the same horizontal plane is mounted so as to slide on a, shaft 677. This table is slid along the shaft 677 and held in any line-position, indicated by an index arm 689 and a scale of numbers 690, by a pawl 692 adapted to engage a rack 691. The pawl is pivoted on a lever 694 a lip on which extends across the edge of the pawl which is held in engagement with the lip by a spring 696. The side edges 679 of the movable table are provided with stepped flanges 684, 683. Thin plates 685 above the flanges 683 are flaned upwards at 686 while abutment guides 687 support thin metal guides 688. In the case of a deposit transaction, a slip and a pass-book are placed in the machine. The pass-book is opened at the page to receive the impression and is placed on the table 675, being pushed beneath the guide plate 688 on to the flange 684. The deposit slip is then placed on top of the guide plate 688 and beneath the flared portion 686 and slid on to the flange 683. The carriage is then moved so that printing occurs on the next vacant line in the pass-book. After the slip has received an impression, and before the book receives an impression, the slip has to be ejected. Two knurled rollers 705 splined to the shaft 677 project above the table to a level slightly above the flange 638. These rollers engage the under side of the inserted slip and are mounted so as to slide to and fro with the carriage. Co-operating with each roller 705 is a small idle roller 706 which is urged against the roller 705 by a spring. The mounting of the rollers 706 is such that normally a bar 712 connecting the mountings is held up by a roller 714 on an arm 715 and the rollers 705, 706 are held apart against the influence of the spring. The shaft 784 carries fixed to it an arm 718 to which a screw 717 is attached which passes through a slot in the arm 715 which is loose on the shaft. When the latter is rocked counter-clockwise in the operation of the machine, the arm 715 follows the arm 718 under the influence of the spring which causes the rollers to close and grip the record material. The shaft 677 is driven from a pin 720 on a toothed disc on the shaft 242, through Geneva, spur and helical gears. Specifications 144,538 and 203,762, [Class 106 (i), Calculating &c.], are also referred to.